Search a number
-
+
331120239 = 31934716741
BaseRepresentation
bin10011101111000…
…111111001101111
3212002001122120120
4103233013321233
51134231321424
652505020023
711130322062
oct2357077157
9762048516
10331120239
1115a9aa59a
1292a84613
13537a5948
1431d948d9
151e109a79
hex13bc7e6f

331120239 has 16 divisors (see below), whose sum is σ = 466097280. Its totient is φ = 208513440.

The previous prime is 331120219. The next prime is 331120241. The reversal of 331120239 is 932021133.

It is not a de Polignac number, because 331120239 - 212 = 331116143 is a prime.

It is a super-2 number, since 2×3311202392 = 219281225350834242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331120219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11409 + ... + 28149.

It is an arithmetic number, because the mean of its divisors is an integer number (29131080).

Almost surely, 2331120239 is an apocalyptic number.

331120239 is a deficient number, since it is larger than the sum of its proper divisors (134977041).

331120239 is a wasteful number, since it uses less digits than its factorization.

331120239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17110.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 331120239 is about 18196.7095651934. The cubic root of 331120239 is about 691.8233919263.

The spelling of 331120239 in words is "three hundred thirty-one million, one hundred twenty thousand, two hundred thirty-nine".

Divisors: 1 3 19 57 347 1041 6593 16741 19779 50223 318079 954237 5809127 17427381 110373413 331120239